摘要
提出了一种新型的感应电动机直接转矩控制方法,采用空间矢量调制方式生成逆变器开关控制信号,从而有效减小转矩、磁链和电流的脉动。与其他基于空间电压矢量调制的直接转矩控制方法不同,定子磁链幅值与转矩控制器的设计基于变结构控制理论,具有实现简单、鲁棒性强的特点。理论分析证明了定子磁链幅值与转矩控制的渐近稳定性。仿真和实验结果表明了所提方法具有良好的动静态性能。
A new approach to direct torque control (DTC) of induction machines is presented. The space vectormodulation (SVM) technique is applied to voltage source inverter, thereby, the torque, flux and stator current ripple is reduced. As compared to other existing SVM based DTC method, the stator flux and the torque controllers of the new approach are developed based on variable structure control theory, and then, the controllers have the advantage of simple architecture and robustness. Theoretical analysis shows that the system is asymptotically stable. Simulations and experimental results are presented to illustrate performances of the proposed method.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2004年第1期107-111,共5页
Proceedings of the CSEE
基金
国家"十.五"重点科技攻关项目(2001609A)。~~
